Berlin (GDR) 1968
135 x 100 x 75 cm, ca. 90 kg
Metal, plastic, keyboard, control generator, vibrato and tremolo generator, binary frequency divider, subharmonic frequency divider, mel filter, noise generator, sinus generator, ring modulator, semiconductor technology

The keyboard, designed to react to pressure in order to regulate volume, has a pitch range of three octaves and controls a main generator. The latter, by dividing the frequencies in a ratio of 2:1, generates seven octaves for each key (1’ to 64’), hence a total of ten octaves per keyboard. The subharmonic mixtures are produced by four secondary generators whose frequencies are generated by dividing the frequency of the main generator (1/2 to 1/29). Mel and formant filters as well as ring and choir modulators in interaction with the mixtures allow the creation of a wide variety of timbres.

 
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